The TEF chipsets provide 0.1 to 30 MHz coverage, plus FM broadcast band, but with only AM and wideband FM modes (no CW/SSB) . There are a few dual chipset TEF668X/Si473X radios that do have SSB/CW.
The user-interface of TEF668x-based radios often have separate tuning and volume knobs, as well as buttons for direct frequency entry similar to more conventional portable radios. Many TEF-based radios do not have external antenna connections.
Many of the small portable radios with video displays based on the TEF668x chipsets and ESP-32 microprocessors suffer from internally generated noise when they are used with directly attached whip and loop antennas. Most of these radios include rechargeable batteries that use USB chargers.
DeepElec DP666 TEF6686 Radio
A dual TEF668X/Si473X radio